Configurable product is missing its variants data

[nrkapoor]

Configurable product is missing its variants data

[m2-assistant]

Hi @nrkapoor. Thank you for your report.
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[bricht]

Might be unrelated but my variants data was not syncing to elastic storage. (other data was)
After I downgraded from elasticsearch 7.7.1 to 6.7.1 (also wiped elasticsearch container and volume) it worked again.

[yaroslavGoncharuk]

@mslabko cannot reproduce on 2.3-develop and elastic versions 7.7.1/7.1.0

  ["variants"]=>
  array(2) {
    [0]=>
    array(3) {
      ["sku"]=>
      string(8) "Conf-red"
      ["minimumPrice"]=>
      array(2) {
        ["regularPrice"]=>
        float(10)
        ["finalPrice"]=>
        float(10)
      }
      ["selections"]=>
      array(1) {
        [0]=>
        array(2) {
          ["name"]=>
          string(5) "Color"
          ["value"]=>
          string(3) "red"
        }
      }
    }
    [1]=>
    array(3) {
      ["sku"]=>
      string(10) "Conf-green"
      ["minimumPrice"]=>
      array(2) {
        ["regularPrice"]=>
        float(20)
        ["finalPrice"]=>
        float(20)
      }
      ["selections"]=>
      array(1) {
        [0]=>
        array(2) {
          ["name"]=>
          string(5) "Color"
          ["value"]=>
          string(5) "green"
        }
      }
    }
  }

[yaroslavGoncharuk]

@mslabko @nrkapoor I was able to reproduce the issue with enabled MSI
If the last inventory source for a configurable product option (simple product) is set to 0, null will be returned for "variants"
Steps:

1. Create a configurable product with several options (simple products)
2. Configure several Inventory Sources
3. Assign created sources for each configurable option (simple product)
4. Set 0 quantity for the last Source in each configurable product option (simple product),
   Note. If 0 is set for any source except the last one everything is OK.
5. Reindex
6. Null is returned for "variants"

[RuslanKostiv1]

@mslabko @bricht @akaplya can you link this issue to PR that is ready for review?

[mslabko]

Moved to Blocked until response from Customer
CC: @nrkapoor

[nrkapoor]

@akaplya can we close this issue?