Hi Eugenet,

As you have mentioned above, you get "Send for signature could not error" when trying to send the document. You have already tried uninstalling and re-installing the application.

Could you please confirm the Adobe application you are using to send the document for signature?

Please try once to send the document directly from Adobe Sign account here Sign In — e-signature and e-sign Software Solution — Adobe Sign

Open the link and sign with the same credentials that you were using the for the application.

Check if you can send the document without any issues.

If the issue persists, please share the email address you used to sign in to the applicaiton in a private message.

Use the steps provided here How Do I Send Private Message to initiate a private message.

Let us know if you need any help.

Regards,

Meenakshi

Hello,

I found these two links to be somewhat useful to your case:

How to Enable "Send for Signature"? (Sign and Send PDFs)

Send for Signature Error Message: Could not Send