Question:

The error appears when completing a task during the approval process.

Error: The workflow action has encountered the following errors: You do not have the required e-signature permission to complete the task.

Answer:

This error occurs during the Approval process when the user that is completing a task that requires a manifested eSignature, does not have a Security Profile with a Permission Set enabled to provide e-signatures.

The End-user can request an internal Administrator a Security Profile update where the eSignature option is enabled. 

Administrators can enable the eSignature option in a Security Profile Permission Set under Application>Workflow.

Related Documentation:

Vault Help Documentation:

• Configuring Document Lifecycles to Manifest eSignatures
• Permission Sets - Action Workflow: eSignature

Knowledge Base:

How to Provide e-Signatures in PromoMats and Veeva Medical?