Temporary Credit Message TSTA

I am setting the field TSTA manually within the Customer Master Record.  According to documentation I found, it advises the field can be set manually or via R03B525 refresh.

I also read the temp credit flash message is not viewable in the Cust Ledger Inquiry pgm, P03B2002. It should be available in the Sales Order Entry form, as well as the Accounts Receivable form.

1.     Which form exactly pertains to the documentation statement of 'Accounts Receivable Form'?

2.     Should it display in P42101, P4211?

3.     Why when I update the customer master account manually doesn't it display?

I've also attempted to run R03B525 by customer #, AN8 only.