Using "First value of column" for file path when exporting - how can we use it?

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Hi Mark and welcome to the Community!

Calculated parameters are evaluated before the current project module starts running. After that, they are constant (immutable). Therefore calculated parameters can only be calculated using other parameters, but not table values.

Parameters of a module can be assigned with table values, when the module is called from another module. The process of calling other modules is described here: EasyMorph | Subroutines

See the example below.

export-file.morph (5.2 KB)

Notice that in the “Call” action, the parameter {Date} of the called module is assigned with the first value from column [Date] of the calling module.

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Let me know if you have questions.