Wow, I thought that would be easy, but I was wrong! I'm a contractor and Filemaker novice, and every job has anywhere from 1 to 15 Change Orders and I need to keep track of the constantly changing completion dates and contract amounts.
My database is called Change Orders, and I have a four fields in each record that need to work together: "Original Completion Date", "Current Completion Date", "Days Added To Project", and "Revised Completion Date". The value contained in "Original Completion Date" is from a related database, Jobs; that's no problem. "Days Added to Project" is a number, manually entered for each record, also not problem, and "Revised Completion Date" is a calculation of "Current Completion Date" plus "Days Added to Project", which works correctly and allows for weekend days. My problem is with getting "Current Completion Date" to contain the value from "Revised Completion Date" in the previous record. The link suggested before showed how I could access a text field from the previous record, but I don't see how to make it work with the result of a calculation. Likewise for contract amount: "Original...", "Current...", "Amount Added to Contract", and "Revised...", which I haven't yet tackled.
Any help with my question will be greatly appreciated!