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Assistance Required for DocuSign Flow Error – "ANCHOR_TAB_STRING_NOT_FOUND"

  • June 23, 2025
  • 4 replies
  • 79 views

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Hi,

I have created a Power Automate flow for DocuSign, and it is working fine when the KYS DOCX form is attached from SharePoint — the approver is able to sign without any issues.

However, I'm encountering a problem when I try to attach additional PDF files along with the KYS form (for review purposes) for the same approver. In this case, I'm getting the following error: "ANCHOR_TAB_STRING_NOT_FOUND."

 

Could you please help me resolve this issue?

Best answer by Melanie.Panguito

Hello ​@Sai Pasupuleti,

Thank you for reaching out to the DocuSign Community! We appreciate your engagement and are committed to fostering a supportive environment for knowledge sharing.

We're sorry to hear about the error "ANCHOR_TAB_STRING_NOT_FOUND" within your flow. The issue often arises when the document needs to be properly converted to Base64 format 👉 Base64-encoding document content

If the issue persists, we recommend opening a support case so a specialist from our Microsoft team can investigate and provide tailored guidance. This may involve a closer look at your workflow and potentially require a copy of the documents and screensharing if needed. 

Open a case in the Docusign Support Center

How can I request a phone call from Docusign Support?

Le us know if you have questions or anything comes up. Here, if you need us!

 

Sincerely,

Melanie | Docusign Community Moderator
Helpful? Mark it as "Best Answer" to help others too!

4 replies

JohnSantos
Guru
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  • Guru
  • 1073 replies
  • June 23, 2025

@Sai Pasupuleti 

In Power Automate, when using the DocuSign connector, make sure each tab (e.g., signature tab) is tied to the correct documentId


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  • Author
  • New Voice
  • 4 replies
  • June 25, 2025

I'm encountering a problem when I try to attach additional PDF files along with the KYS form (for review purposes) for the same approver. In this case, I'm getting the following error: "ANCHOR_TAB_STRING_NOT_FOUND."


Forum|alt.badge.img+15
  • Community Moderator
  • 1489 replies
  • Answer
  • July 2, 2025

Hello ​@Sai Pasupuleti,

Thank you for reaching out to the DocuSign Community! We appreciate your engagement and are committed to fostering a supportive environment for knowledge sharing.

We're sorry to hear about the error "ANCHOR_TAB_STRING_NOT_FOUND" within your flow. The issue often arises when the document needs to be properly converted to Base64 format 👉 Base64-encoding document content

If the issue persists, we recommend opening a support case so a specialist from our Microsoft team can investigate and provide tailored guidance. This may involve a closer look at your workflow and potentially require a copy of the documents and screensharing if needed. 

Open a case in the Docusign Support Center

How can I request a phone call from Docusign Support?

Le us know if you have questions or anything comes up. Here, if you need us!

 

Sincerely,

Melanie | Docusign Community Moderator
Helpful? Mark it as "Best Answer" to help others too!


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  • Community Moderator
  • 1489 replies
  • July 16, 2025

Hi there ​@Sai Pasupuleti,

How are you? I'm just checking in to see if you still need any help, and we'll gladly help you with any questions you may have. Have a great day!

 

Sincerely,

Melanie | Docusign Community Moderator
Helpful? Mark it as "Best Answer" to help others too!