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Question

Troubleshooting mapping failures when filling PDFs with Zapier and ANVIL

  • June 24, 2026
  • 2 replies
  • 17 views
M

I have created a zap using Google AI and Zapier code to extra data from a pdf then process it and using ANVIL to fill the pdf and send it to me via email. This is a high level view. I am looking for guidance, 1 in 3 times the process triggers i get an incomplete file. when i review the steps there are no errors and all the data is there but the mapping fails? I am not sure why the mapping fails? Would this be a process that makes sense? Its not making sense to me why it randomly select a run to fail?

2 replies

Troy Tessalone
Zapier Orchestrator & Solution Partner
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  • Troy TessaloneZapier Orchestrator & Solution Partner
  • Zapier Orchestrator & Solution Partner
  • June 24, 2026

Hi ​@MaxxR 

Help links to reference: https://help.zapier.com/hc/en-us/articles/8496199667981-Zap-is-not-sending-data

 

Check the Zap Runs history details to see the DATA IN/OUT for each step to help you trace the data flow and troubleshoot the root issue: https://zapier.com/app/history/

 

For us to have more context, post screenshots showing how your Zap steps are outlined and configured in the CONFIGURE tab while in EDIT mode with the field mappings visible.

 

If you are looking to hire help, there is a directory of Zapier Partners: https://zapier.com/partnerdirectory

⚡ Troy Tessalone - AutomationAce.com | Top Zapier Solution Partner | #1 Zapier Community Contributor
SamB
Community Manager
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  • SamBCommunity Manager
  • Community Manager
  • July 1, 2026

Hi ​@MaxxR 👋

Looks like you reached out to our Support team and figured this one out yourself! From what I could see on the ticket, the Code step was sometimes outputting data into different fields, and that was caused by some confusion in the code between testing and production.

If you're up for sharing a bit more about what the fix you put in place was, that would be really useful for anyone who runs into something similar. 🙏

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