Updating draft orders using rest API removes line item discounts

Retired Boards Appdev Graphql Basics And Troubleshooting

Topic summary

Issue: Updating a draft order via Shopify APIs removes existing line item discounts. This happens when changing tags or adding/updating the shipping line, and was first noticed in the last two days.

Scope: Confirmed by Shopify support as a known issue with no ETA. Affects both REST (2022-01) and GraphQL endpoints. “Line item discounts” are discounts applied to individual items in the draft order.

Workaround: Include the full line_items object in every PUT update request, even when only modifying tags or shipping, to preserve discounts.

Status: Multiple developers have reproduced the problem. Workaround is in use while awaiting an official fix. Discussion remains open with no resolution yet.

Summarized with AI on February 5. AI used: gpt-5.
1

Hello,

We see a strange behavior in Draft Orders API (2022-01). If we just update draft order tags via API, it removes all the discounts added in that draft order.

Same thing happens if we add/update shipping line. This issue we started facing since last 2 days.

Is there anything changed at Shopify side?

1 Like
2

Hello,

We are also facing same issue while using update Draft Order Rest API. Seems something is changed in Shopify Rest API. Were you able to figure any workaround for this?

Thank You

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3

Hello,

Shopify support has confirmed that this is a known issue and their developers are working on it though they don’t have ETA.

GraphQL API also have this issue.

For now, as a workaround you can pass “line_items” object in every PUT request even though you just want to change tags or limited fields.

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4

Also running into this problem. Thanks @anilv-procentri for the idea for the workaround.