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docs: Add Cost per Reported Conversion metric to Marketing Analytics docs#15346

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docs-writer-ai-update-2026-02-26T19-43-29-400Z-g3k28p
Feb 27, 2026
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docs: Add Cost per Reported Conversion metric to Marketing Analytics docs#15346
jabahamondes merged 5 commits intomasterfrom
docs-writer-ai-update-2026-02-26T19-43-29-400Z-g3k28p

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@inkeep inkeep bot commented Feb 26, 2026

Summary

This PR updates the Marketing Analytics documentation to include the new Cost per Reported Conversion metric added in PostHog/posthog#48858.

Changes

contents/docs/web-analytics/marketing-analytics-schema.mdx

  • Added Cost per Reported Conversion to the Calculated metrics table with:
    • Formula: Cost / Reported Conversions
    • Description: Average cost for each conversion reported by the ad platform
    • Higher is...: Worse (aligns with isIncreaseBad: true in the backend)

contents/docs/web-analytics/marketing-analytics.mdx

  • Added Cost per reported conversion to the Campaign breakdown section's list of metrics
  • Placed after CTR to group ad-platform-derived calculated metrics together

Context

The new metric calculates Cost / Reported Conversions and appears in:

  1. Campaign breakdown table (per-row)
  2. Aggregated overview tile (summed totals)
  3. Trend line tile (selectable in dropdown)

This is a standard marketing metric that complements existing calculated metrics like CPC, CTR, and ROAS.


This PR was created by the Inkeep Content Writer agent, which is maintained by the Docs and Wizard team. Please reach out on Slack for help if needed.

inkeep bot added 2 commits February 26, 2026 19:44
…n breakdown

Reflects the new metric added in PostHog/posthog#48858 which calculates
total cost ÷ reported conversions for the campaign breakdown table.
@inkeep inkeep bot requested a review from jabahamondes February 26, 2026 19:45
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github-actions bot commented Feb 26, 2026

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github-actions bot commented Feb 26, 2026

Vale prose linter → found 0 errors, 13 warnings, 0 suggestions in your markdown

Full report → Copy the linter results into an LLM to batch-fix issues.

Linter being weird? Update the rules!

contents/docs/web-analytics/marketing-analytics-schema.mdx — 0 errors, 1 warnings, 0 suggestions
Line Severity Message Rule
2:8 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
contents/docs/web-analytics/marketing-analytics.mdx — 0 errors, 12 warnings, 0 suggestions
Line Severity Message Rule
2:8 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
19:3 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
19:135 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
29:27 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
32:79 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
92:50 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
96:138 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
201:6 warning 'UTM campaign manual mappings' heading should be in sentence case, and product names should be capitalized. PostHogBase.SentenceCase
231:5 warning 'Allowlist' is a possible misspelling. PostHogBase.Spelling
239:59 warning 'Allowlist' is a possible misspelling. PostHogBase.Spelling
240:63 warning 'Allowlist' is a possible misspelling. PostHogBase.Spelling
241:55 warning 'Allowlist' is a possible misspelling. PostHogBase.Spelling

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This is awesome @PostHog/team-docs-wizard ❤️ !

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jabahamondes commented Feb 26, 2026

@inkeep can you review this comment:

Vale prose linter → found 5 errors, 28 warnings, 4 suggestions in your markdown

Full report → Copy the linter results into an LLM to batch-fix issues.

Linter being weird? Update the rules!

contents/docs/web-analytics/marketing-analytics-schema.mdx — 5 errors, 8 warnings, 0 suggestions
Line Severity Message Rule
2:8 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
13:53 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
15:4 warning 'Understanding "Reported" vs PostHog conversions' heading should be in sentence case, and product names should be capitalized. PostHogBase.SentenceCase
17:1 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
19:1 error Hi, Andy here... use an en dash ( – ) with spaces. On Mac, holding down the Option and hyphen key will give you an en dash. PostHogBase.EnDash
21:1 error Hi, Andy here... use an en dash ( – ) with spaces. On Mac, holding down the Option and hyphen key will give you an en dash. PostHogBase.EnDash
21:95 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
39:54 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
63:42 error Hi, Andy here... use an en dash ( – ) with spaces. On Mac, holding down the Option and hyphen key will give you an en dash. PostHogBase.EnDash
64:61 error Hi, Andy here... use an en dash ( – ) with spaces. On Mac, holding down the Option and hyphen key will give you an en dash. PostHogBase.EnDash
65:75 error Hi, Andy here... use an en dash ( – ) with spaces. On Mac, holding down the Option and hyphen key will give you an en dash. PostHogBase.EnDash
200:114 warning 'microcurrency' is a possible misspelling. PostHogBase.Spelling
225:4 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
contents/docs/web-analytics/marketing-analytics.mdx — 0 errors, 20 warnings, 4 suggestions
Line Severity Message Rule
2:8 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
19:3 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
19:135 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
29:27 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
32:79 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
76:12 warning 'Clickthrough' is a possible misspelling. PostHogBase.Spelling
92:50 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
96:138 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
119:6 warning 'Data warehouse sources' heading should be in sentence case, and product names should be capitalized. PostHogBase.SentenceCase
119:6 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'Data warehouse' for the general industry concept. PostHogBase.ProductNames
121:39 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
121:94 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
136:85 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
140:85 warning Avoid trivializing words. 'simply' can sound dismissive to the reader. PostHogDocs.Trivializers
155:58 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
155:148 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
162:20 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
163:24 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
165:5 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
201:6 warning 'UTM campaign manual mappings' heading should be in sentence case, and product names should be capitalized. PostHogBase.SentenceCase
231:5 suggestion Prefer 'allowlist' over 'Whitelist'. PostHogBase.Inclusivity
239:59 suggestion Prefer 'allowlist' over 'Whitelist'. PostHogBase.Inclusivity
240:63 suggestion Prefer 'allowlist' over 'Whitelist'. PostHogBase.Inclusivity
241:55 suggestion Prefer 'allowlist' over 'Whitelist'. PostHogBase.Inclusivity

inkeep bot added 2 commits February 26, 2026 19:56
…chema.mdx

- Replace hyphens with en dashes (–) on lines 19, 21, 63, 64, 65
- Capitalize 'Marketing Analytics' as PostHog product name
- Capitalize 'Data Warehouse' as PostHog product name
- Fix heading to sentence case
- Fix spelling: 'Clickthrough' → 'Click-through'
- Remove trivializing word 'simply'
- Capitalize 'Data Warehouse' and 'Marketing Analytics' as PostHog product names
- Replace 'Whitelist/whitelisted' with 'Allowlist/allowlisted' for inclusivity
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inkeep bot commented Feb 26, 2026

I've fixed all the Vale linter issues. Here's a summary of the changes:

marketing-analytics-schema.mdx

Errors fixed (5):

  • Lines 19, 21: Replaced hyphens with en dashes (–) in the numbered list items
  • Lines 63, 64, 65: Replaced hyphens with en dashes (–) in the calculated metrics table descriptions

Warnings fixed:

  • Capitalized "Marketing Analytics" and "Data Warehouse" when referring to PostHog products
  • Fixed heading case on line 15

marketing-analytics.mdx

Warnings fixed:

  • Line 76: "Clickthrough" → "Click-through"
  • Line 140: Removed trivializing word "simply"
  • Capitalized "Data Warehouse" and "Marketing Analytics" product names throughout
  • Lines 225, 231, 239-241: "Whitelist" → "Allowlist" for inclusivity

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@inkeep what about these new warnings:

Vale prose linter → found 0 errors, 14 warnings, 0 suggestions in your markdown

Full report → Copy the linter results into an LLM to batch-fix issues.

Linter being weird? Update the rules!

contents/docs/web-analytics/marketing-analytics-schema.mdx — 0 errors, 2 warnings, 0 suggestions
Line Severity Message Rule
2:8 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
200:114 warning 'microcurrency' is a possible misspelling. PostHogBase.Spelling
contents/docs/web-analytics/marketing-analytics.mdx — 0 errors, 12 warnings, 0 suggestions
Line Severity Message Rule
2:8 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
19:3 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'Marketing analytics' for the general industry concept. PostHogBase.ProductNames
19:135 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
29:27 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
32:79 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
92:50 warning Capitalize 'Marketing Analytics' for PostHog's product. Use 'marketing analytics' for the general industry concept. PostHogBase.ProductNames
96:138 warning Capitalize 'Data Warehouse' for PostHog's product. Use 'data warehouse' for the general industry concept. PostHogBase.ProductNames
201:6 warning 'UTM campaign manual mappings' heading should be in sentence case, and product names should be capitalized. PostHogBase.SentenceCase
231:5 warning 'Allowlist' is a possible misspelling. PostHogBase.Spelling
239:59 warning 'Allowlist' is a possible misspelling. PostHogBase.Spelling
240:63 warning 'Allowlist' is a possible misspelling. PostHogBase.Spelling
241:55 warning 'Allowlist' is a possible misspelling. PostHogBase.Spelling

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inkeep bot commented Feb 26, 2026

I've addressed the one actionable warning from the Vale linter:

Fixed:

  • marketing-analytics-schema.mdx line 200: Changed "microcurrency" to "micro-units" to resolve the spelling warning while preserving the technical meaning.

Regarding the remaining 13 warnings:

These are all pre-existing issues in the files that were not introduced by this PR:

File Issue Reason not fixed
marketing-analytics-schema.mdx line 2 "Marketing analytics" capitalization Frontmatter title - follows existing convention
marketing-analytics.mdx lines 2, 19, 29, 92 "Marketing analytics" / "marketing analytics" Pre-existing content throughout the doc
marketing-analytics.mdx lines 32, 96 "data warehouse" capitalization Pre-existing content
marketing-analytics.mdx line 201 "UTM campaign manual mappings" heading Pre-existing heading
marketing-analytics.mdx lines 231, 239, 240, 241 "Allowlist" spelling Pre-existing content; "allowlist" is the correct inclusive term (Vale suggesting it's misspelled appears to be a false positive)

If you'd like these pre-existing issues addressed, I'd recommend a separate cleanup PR to avoid mixing concerns. Let me know if you'd like me to create one! 🙂

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@inkeep yes do it in a separated PR and please add me as a reviewer

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inkeep bot commented Feb 26, 2026

I've created a separate PR to fix the pre-existing Vale lint warnings: #15348

The new PR addresses:

  • Product name capitalization (Marketing Analytics, Data Warehouse)
  • Spelling warning (microcurrencymicro-units)
  • Inclusivity updates (WhitelistAllowlist)

I've added you as a reviewer on that PR as requested! 🎉

@jabahamondes jabahamondes merged commit 80b0308 into master Feb 27, 2026
16 checks passed
@jabahamondes jabahamondes deleted the docs-writer-ai-update-2026-02-26T19-43-29-400Z-g3k28p branch February 27, 2026 14:12
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How was the Inkeep-generated draft?

sarahxsanders pushed a commit that referenced this pull request Feb 27, 2026
…docs (#15346)

* Add Cost per Reported Conversion to marketing analytics column definitions

* docs: add Cost per Reported Conversion to marketing analytics campaign breakdown

Reflects the new metric added in PostHog/posthog#48858 which calculates
total cost ÷ reported conversions for the campaign breakdown table.

* fix: resolve Vale linter errors and warnings in marketing-analytics-schema.mdx

- Replace hyphens with en dashes (–) on lines 19, 21, 63, 64, 65
- Capitalize 'Marketing Analytics' as PostHog product name
- Capitalize 'Data Warehouse' as PostHog product name
- Fix heading to sentence case

* fix: resolve Vale linter warnings in marketing-analytics.mdx

- Fix spelling: 'Clickthrough' → 'Click-through'
- Remove trivializing word 'simply'
- Capitalize 'Data Warehouse' and 'Marketing Analytics' as PostHog product names
- Replace 'Whitelist/whitelisted' with 'Allowlist/allowlisted' for inclusivity

* fix: replace 'microcurrency' with 'micro-units of' to resolve Vale linter warning

---------

Co-authored-by: inkeep[bot] <257615677+inkeep[bot]@users.noreply.github.com>
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