# Failed to export Matrix Item# {ParentItemId} (Id: {ParentInternalID}) | Invalid Format for Matrix option. Use \\"--\\"

**URL:** <https://connective.celigo.com/t/failed-to-export-matrix-item-parentitemid-id-parentinternalid-invalid-format-for-matrix-option-use/264>\
**Category:** Integration Apps\
**Tags:** error-handling, export, shopify, netsuite\
**Created:** [December 22, 2023, 9:41pm UTC](https://connective.celigo.com/t/failed-to-export-matrix-item-parentitemid-id-parentinternalid-invalid-format-for-matrix-option-use/264 "2023-12-22T21:41:38Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![sujitdesai](https://avatars.discourse-cdn.com/v4/letter/s/e79b87/32.png) [@sujitdesai](https://connective.celigo.com/u/sujitdesai)\
**Post date:** [December 22, 2023, 9:41pm UTC](https://connective.celigo.com/t/failed-to-export-matrix-item-parentitemid-id-parentinternalid-invalid-format-for-matrix-option-use/264/1 "2023-12-22T21:41:38Z")

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When previewing the data in the Celigo NetSuite Export for the Matrix Item Flow I get the following error message:

```
{ "page_of_records": [{ "record": { "code": "shopify_matrix_item_export_error", "message": "Failed to export Matrix Item# {ParentItemId} (Id: {ParentInternalID}) | Invalid Format for Matrix option. Use \"--\"", "source": "pre_send_hook_ss", "resolved": false, "occurredAt": } }]}
```

I was using following matrix formatting format **{itemid}-{custitem\_}**  
I am tried to follow the error message and change the matrix naming convention in Netsuite under Items \>\> Accounting tab to the following **{itemid}--{custitem\_} (notice that I changed from '-' to '--'**:

![5301043caa20740200000001-9d19aafdb03f46db9a797c446583e07c.png](https://us1.discourse-cdn.com/flex001/uploads/celigo/original/2X/1/19fd5b72acc3961392a0f36dded5740a8d041e1c.png)

Still the error is persistent. Anyone in the community experienced the same error before?

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<div class="post-metadata">

**Author:** ![divyamkapoor](https://avatars.discourse-cdn.com/v4/letter/d/dbc845/32.png) [@divyamkapoor](https://connective.celigo.com/u/divyamkapoor)\
**Post date:** [December 26, 2023, 1:01pm UTC](https://connective.celigo.com/t/failed-to-export-matrix-item-parentitemid-id-parentinternalid-invalid-format-for-matrix-option-use/264/2 "2023-12-26T13:01:23Z")

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Hi Sujit,

You need to use it int he below format -\>  
{itemid}-{custitemxx}

Also I have seen this issue when we don't the set the shopify variation theme.

Can you try the above internally and confirm if that helps.