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Read GPP consent from the IAB's SharedPreferences keys - #49
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The IAB GPP CMP API spec has in-app CMPs store the GPP string under IABGPP_HDR_GppString and the section IDs under IABGPP_GppSID (underscore-separated). The SDK read IABGPP_2_TCString, which isn't an IAB key, and never read the section IDs. - Read IABGPP_HDR_GppString first, keep IABGPP_2_TCString as a fallback. - Read IABGPP_GppSID and convert "2_7" to "2,7" for the Edge API. - Use the CMP's section IDs only when the GPP string also came from the CMP. - An explicit gppSid always wins. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This was referenced Oct 29, 2026
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mosherBT
approved these changes
Nov 9, 2026
…tring Blank SharedPreferences values are treated as unset, so the SDK no longer sends `gpp=` or `gpp_sid=`, and a blank IABGPP_HDR_GppString falls back to the legacy key. The CMP's section IDs are only sent with the CMP's own GPP string, never with the legacy IABGPP_2_TCString value. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
mosherBT
approved these changes
Nov 10, 2026
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Why
The IAB GPP CMP API spec has in-app CMPs store the GPP string under
IABGPP_HDR_GppStringand the applicable section IDs underIABGPP_GppSID(underscore-separated, e.g.2_7). The SDK readIABGPP_2_TCString, which isn't an IAB key, and never read the section IDs. With a spec-compliant CMP, nogppwas sent, andgpp_sidwas never sent unless the app setOptableConsents.gppSid.Same fix as the iOS SDK (Optable/optable-ios-sdk#86).