# Form data error when batch editing variant group products in litium 4.8.10

**URL:** <https://forum.litium.com/t/form-data-error-when-batch-editing-variant-group-products-in-litium-4-8-10/162>\
**Category:** Questions\
**Created:** [July 6, 2018, 12:15pm UTC](https://forum.litium.com/t/form-data-error-when-batch-editing-variant-group-products-in-litium-4-8-10/162 "2018-07-06T12:15:03Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![andymcpherson](https://avatars.discourse-cdn.com/v4/letter/a/b5ac83/32.png) [@andymcpherson](https://forum.litium.com/u/andymcpherson)\
**Post date:** [July 6, 2018, 12:15pm UTC](https://forum.litium.com/t/form-data-error-when-batch-editing-variant-group-products-in-litium-4-8-10/162/1 "2018-07-06T12:15:03Z")

</div>

I have a customer who is receiving the following error when batch editing products in a variant group:

```
The URL-encoded form data is not valid.

   at System.Web.HttpRequest.FillInFormCollection()
   at System.Web.HttpRequest.EnsureForm()
   at System.Web.HttpRequest.get_Form()
   at System.Web.HttpRequest.get_HasForm()
   at System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull)
   at System.Web.UI.Page.DeterminePostBackMode()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

```

As far as I can tell, the data is correct. The group has a large number of products (36). There is nothing in the log files. Any idea where I can look into the cause of the error?

Litium version: 4.8.10

---

<div class="post-metadata">

**Author:** ![marten](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/marten/32/11_2.png) [@marten](https://forum.litium.com/u/marten)\
**Post date:** [August 23, 2018, 8:45am UTC](https://forum.litium.com/t/form-data-error-when-batch-editing-variant-group-products-in-litium-4-8-10/162/2 "2018-08-23T08:45:37Z")

</div>

@andymcpherson did you find a solution to this issue?

---

<div class="post-metadata">

**Author:** ![andymcpherson](https://avatars.discourse-cdn.com/v4/letter/a/b5ac83/32.png) [@andymcpherson](https://forum.litium.com/u/andymcpherson)\
**Post date:** [September 5, 2018, 11:24am UTC](https://forum.litium.com/t/form-data-error-when-batch-editing-variant-group-products-in-litium-4-8-10/162/3 "2018-09-05T11:24:10Z")

</div>

@marten I did not find a solution to this issue

---

<div class="post-metadata">

**Author:** ![malin.oborn](https://avatars.discourse-cdn.com/v4/letter/m/cab0a1/32.png) [@malin.oborn](https://forum.litium.com/u/malin.oborn)\
**Post date:** [September 6, 2018, 7:41am UTC](https://forum.litium.com/t/form-data-error-when-batch-editing-variant-group-products-in-litium-4-8-10/162/4 "2018-09-06T07:41:18Z")

</div>

I did, see [Can't batch update variants in variant group](https://forum.litium.com/t/cant-batch-update-variants-in-variant-group/201)

The page posted too much form data on submit. I had to increase aspnet:MaxHttpCollectionKeys (from 10000 to 20000).