Assistance w/ automated Checkbox based on multiple conditions
I'm after some assistance regarding a formula to automate a checkbox based on multiple conditions. These are;
Column "Requested by" is populated with a date. Column "Site" is populated. Column "Site contact" is populated. Column "Quantity" is populated. Column "Product" contains the word "Device"
Then a sum is used to calculate the total number in column "Quantity" and confirm it is less than a certain figure. Currently I have as per below and believe the SUM area is the incorrect part. It may be an issue that the Quantity column also contains words as headings on top of values. Ideally if possible I want to sum only the values that correspond to the rows where the Product column displays "Device"
=IF(AND(ISDATE([Requested by]@row), ISTEXT([Site]@row), ISTEXT([Site contact]@row), ISTEXT([Quantity]@row), ([Product]@row) = “Device”, SUM(Quantity:Quantity)<1145), 1, 0)