# Using tag field values in web sources

**URL:** <https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909>\
**Category:** Support\
**Created:** [April 20, 2021, 10:58am UTC](https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909 "2021-04-20T10:58:44Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Ouargui](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/o/f17d59/32.png) [@Ouargui](https://community.mp3tag.de/u/Ouargui)\
**Post date:** [April 20, 2021, 10:58am UTC](https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909/1 "2021-04-20T10:58:44Z")

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is there any way i can use an exisiting tag field in a web source script ?

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**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\
**Post date:** [April 20, 2021, 12:09pm UTC](https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909/2 "2021-04-20T12:09:29Z")

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I am not sure what you mean. You need the contents of some tag fields to define the search criteria for the web source.

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**Author:** ![Ouargui](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/o/f17d59/32.png) [@Ouargui](https://community.mp3tag.de/u/Ouargui)\
**Post date:** [April 20, 2021, 2:48pm UTC](https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909/3 "2021-04-20T14:48:32Z")

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no, i meant to use an existing tag field to define an output from the web source

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**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\
**Post date:** [April 20, 2021, 5:38pm UTC](https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909/4 "2021-04-20T17:38:45Z")

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No, I think there is no way to use an existing field value to influence the web source behaviour. Anything like that has to be undertaken as some kind of post-processing with actions and stuff.

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**Author:** ![AreDigg](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/a/bbe5ce/32.png) [@AreDigg](https://community.mp3tag.de/u/AreDigg)\
**Post date:** [April 21, 2021, 12:23am UTC](https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909/5 "2021-04-21T00:23:12Z")

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You can access a tag field in a script, but what are you trying to do?

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**Author:** ![Ouargui](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/o/f17d59/32.png) [@Ouargui](https://community.mp3tag.de/u/Ouargui)\
**Post date:** [April 21, 2021, 1:52am UTC](https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909/6 "2021-04-21T01:52:42Z")

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so basically iTunes purchased files have an xid structure (prefix, scheme, identifier) , while the Apple Music source only provides the unique identifier i want it to keep the full structure thus only updating the identifier

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**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\
**Post date:** [April 21, 2021, 4:39am UTC](https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909/7 "2021-04-21T04:39:35Z")

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Then you have to adapt the script to your needs and remove all field assignments that you do not need.

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**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\
**Post date:** [February 9, 2026, 12:29pm UTC](https://community.mp3tag.de/t/using-tag-field-values-in-web-sources/52909/8 "2026-02-09T12:29:11Z")

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