If you personalize a letter before sending it for signature, TaxCycle does not add the e-signature anchors that indicate where to sign the letter.
You CAN send custom templates for signature, as long as you make those changes in the Template Editor first. If you make one-time changes when viewing the letter in the client file, this personalizes the letter.
See the Personalize a Letter for a Client help topic for more on personalizing a letter and instructions on how to revert your changes.
If you wish to send a personalized letter for signature, print it to PDF, then request the e-signature from within TaxFolder.
For instructions on how to upload a PDF file to TaxFolder and place the signature anchors, read the Send a Document for Signature from TaxFolder section in the Request E-signatures Using TaxFolder help topic.