We have a patron who has explicitly instructed us not to save his credit card information in Tessitura after purchases.
I can't think of any way to automate this other than employing "post-it note technology" on the side of my computer monitor.
Is there any automated way to do this with this single account? Any suggestions for handling this with several users potentially selling into this account?
As a work around, have you considered a custom element in the contitent header for a special note type. This would give you a way to put the "post it" on the account instead of your monitor. Then whoever ran a transaction for that constituent would see a note telling them to delete the credit card after processing. (The "Post It" note type wouldn't have to be limited this specific senario and could be used for any notes you wanted an end user to see for processing.)