Script for Illustrator 25.0

Hi @bosko_5014 there are many, many ways of approaching this type of need, but here is a fairly simple one: you put your text frames into a group called "info" and name the text frames "partNumber", "description", "date" and "client". The script finds them, collects the data you need, and populates those frames' contents.

To test it out, first run it with the attached demo document so you can see it in its most simplest case. Let me know how it goes. Note that it assumes the "client" is the name of the document's parent folder.

- Mark

/**
 * @file Populate Text From Filename.js
 *
 * Finds a group called "Info" and textframes inside that group
 * and populates their contents as follows:
 *   - PartNumber: from document file name
 *   - Description: from document file name
 *   - Date: the document's file's creation date, as YYYY-MM-DD
 *   - Customer: The document's file's parent's (folder) name
 * 
 * @author m1b
 * @version 2025-01-16
 * @discussion https://community.adobe.com/t5/illustrator-discussions/script-for-illustrator-25-0/m-p/15091263
 */
(function () {

    var settings = {

        // extract the part number and description from the filename
        matchFilename: /([A-Z]+\d+)_([^\-]+)-/,

        // a GroupItem in the document must be named this
        INFO_GROUP_NAME: 'info',

        // the names of the target text frames
        FRAME_NAMES: [
            'partNumber',
            'description',
            'date',
            'client',
        ],

    };

    var doc = app.activeDocument;

    if (!doc.fullName)
        return alert('Please save the document and try again.');

    var match = doc.name.match(settings.matchFilename);

    if (!match || 3 !== match.length)
        return alert('Could not parse the filename "+doc.name+".');

    // collect the info
    var partNumber = match[1],
        description = match[2],
        date = doc.fullName.created.toJSON().slice(0, 10),
        client = doc.fullName.parent.name;

    // collect the text frames from the "info group"
    var infoGroup = getThing(doc.groupItems, 'name', settings.INFO_GROUP_NAME);

    if (!infoGroup)
        return alert('Could not find the group item named "' + settings.INFO_GROUP_NAME + '".');

    // find the text frames
    var infoTexts = {
        partNumber: getThing(infoGroup.textFrames, 'name', settings.FRAME_NAMES[0]),
        description: getThing(infoGroup.textFrames, 'name', settings.FRAME_NAMES[1]),
        date: getThing(infoGroup.textFrames, 'name', settings.FRAME_NAMES[2]),
        client: getThing(infoGroup.textFrames, 'name', settings.FRAME_NAMES[3]),
    };

    // set the info
    if (infoTexts.partNumber)
        infoTexts.partNumber.contents = partNumber;

    if (infoTexts.description)
        infoTexts.description.contents = description;

    if (infoTexts.date)
        infoTexts.date.contents = date;

    if (infoTexts.client)
        infoTexts.client.contents = client;

})();

/**
 * Returns a thing with matching property.
 * If `key` is undefined, evaluate the object itself.
 * @author m1b
 * @version 2024-04-21
 * @param {Array|Collection} things - the things to look through.
 * @param {String} [key] - the property name (default: undefined).
 * @param {*} value - the value to match.
 */
function getThing(things, key, value) {

    for (var i = 0, obj; i < things.length; i++)
        if ((undefined == key ? things[i] : things[i][key]) == value)
            return things[i];

};