Title: Import only existing values
Last modified: May 4, 2018

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# Import only existing values

 *  Resolved [subbotaanton](https://wordpress.org/support/users/subbotaanton/)
 * (@subbotaanton)
 * [8 years ago](https://wordpress.org/support/topic/import-only-existing-values/)
 * Hi!
 * I want to reopen the question, which was already asked here [https://wordpress.org/support/topic/import-only-not-null-values/](https://wordpress.org/support/topic/import-only-not-null-values/)
   about importing not null values.
 * So I did like it’s described in answer, but met next problem.
 * When I see in a code that a value in xml is empty, I use a value from a post.
   But in same time it appears that values from a post already empty.
 * So there is some problem with “pmxi_acf_custom_field” hook. I can’t use any values
   from post in this hook because they are already updates.
 * Hope I explained the problem.
 * PS There are some attachment in the post in the link, maybe they help.

Viewing 1 replies (of 1 total)

 *  Plugin Author [WP All Import](https://wordpress.org/support/users/wpallimport/)
 * (@wpallimport)
 * [8 years ago](https://wordpress.org/support/topic/import-only-existing-values/#post-10263073)
 * Hey [@subbotaanton](https://wordpress.org/support/users/subbotaanton/)
 * > So there is some problem with “pmxi_acf_custom_field” hook. I can’t use any
   > values from post in this hook because they are already updates.
 * There are 3 requirements for this to work:
    1. In the import settings, enable “Choose which data to update”.
    2. Make sure that the ACF field is set to update in the “Advanced Custom Fields”
       section.
    3. Make sure that it is **not** set to update in the “Custom Fields” section.
 * Example settings: [https://d.pr/ZpcTJb](https://d.pr/ZpcTJb).
    -  This reply was modified 8 years ago by [WP All Import](https://wordpress.org/support/users/wpallimport/).
    -  This reply was modified 8 years ago by [WP All Import](https://wordpress.org/support/users/wpallimport/).

Viewing 1 replies (of 1 total)

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 * Last activity: [8 years ago](https://wordpress.org/support/topic/import-only-existing-values/#post-10263073)
 * Status: resolved