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Seller tiering

Classification: Tiering of Suppliers

We have defined two cohorts of supplier P0 and P1 based upon the nature and pattern of brand fake deactivation, this grouping can help us pre meditate suppliers who have the intent of committing fraud.

P1: Initial stage of fraud detection, these suppliers are suspected of fraudulent activity and carry potential Brand Fake risk associated with their live listing or new catalog upload. 5% of P1 sellers are converted into P0 sellers on WoW basis.

Criteria used to classify these seller:

(frequency<=5 ) and ((deactivation_percentage>=0.1 and frequency<=2 and deactivated_products>5) or (deactivation_percentage>=0.05 and deactivation_percentage<0.3 and frequency>=2)) and (deactivated_products<4000)

P1 sellers (~6-7k) contribute to around 11% of Brand Fake deactivation on platform,

P0: Critical stage of fraud detection, Live and newly uploaded catalogs of these suppliers are expected to be 100% Brand Fake in nature. 80-85% of incremental sellers coming in this cohort graduate from P1 cohort, remaining % enter directly into this cohort.

P0 (~3k) seller contributes to around 84% of Brand Fake deactivation on platform

Criteria used to classify these seller:

(frequency>5 ) or (deactivation_perc > 0.3 and frequency>2) or (deactivated_products>=4000)

How P1 sellers graduate to become P0 sellers

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Screenshot 2023-02-09 at 12.13.52 AM.png

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Differential Actions

P0 - Block for New Catalog Upload & Catalog Edit (7 day to 120 day) - Automated logic

P1 - Block for Catalog Edit (7 day to 120 day) - Automated logic

Undertaking Criteria

Sellers can raise a ticket after getting blocked for catalog upload asking support to unblock catalog upload.

Either an Undertaking or Brand Authorisation letter (in approved state) to be accepted and then

form⁠

should be filled for exception.

Undertaking should mention following items

Promise to not sell counterfeits again.

Asking them to submit a Brand Authorisation letter before uploading any Branded Product.

Permanent Catalog Upload Block and Monetary penalty if seller is found uploading a Brand Fake again.

Once the exception form has been approved and filled by Support - Model will only unblock Catalog Upload post 7 days. (Punitive Freeze Period for historical action)

Any supplier who submits the undertaking will be checked and monitored for Brand Infringement cases.

Type 1: If in <28 days Supplier breaches following thresholds - (frequency>2{ Frequency after undertaking})

Mark the Supplier P0 for ~ 60 days (No exceptions entertained, support can communicate the timeline for Freeze period uplift) - Phase 1

Introduce [5%] monetary cut on all future payouts - Phase 2

Type 2: If >28 day seller qualifies the criteria - (frequency>2 { Frequency after undertaking})

Mark the Supplier P0 for 15 days (No exceptions entertained, support can communicate the timeline for Freeze period uplift) - Phase 1

Type 3: For a seller who has submitted undertaking crosses (frequency > 4 { Frequency after undertaking}) at any point in time

Proceed for permanent catalog upload block of seller account (Permanent P0 status) - Phase 1

Introduce [10%] monetary cut on all future payouts - Phase 2

Rest remains none.

Comms Management

Send Comms (High Visibility Channel) to all newly identified P1 seller educating them about -

Off Panel Comms

Uploading genuine products

Not uploading Brand Fakes

Asking them to submit Brand Authorisation letter before uploading any Branded Product

Warning them about permanent future catalog upload blocks and monetary penalties in severe cases.

On Panel Comms (At catalog Upload Section)

TBD

P0 seller (Pre Undertaking) -

On Panel:

Catalog Screen Block message/Possible Redirection to catalog support page

Calling: Dedicated Agent bandwidth for calling incremental P0 sellers every week (Incremental P0 sellers ~200-300) (VOS on Unauthorized Listing)

Support:

Way forward -

Explain to them the blocking has been done intentionally as a punishment and also educate them about what can be uploaded v/s what can be done (

sample video⁠

). (Please don’t take bug/system error as response - make them admit about their actions)

Proceed for Undertaking

No unblock timelines to be communicated here, Incase submit submits the undertaking a period of one week can be communicated to the seller for getting unblocked for new catalog upload.

Explaining the consequences of reuploading brand fakes again - Permanent Seller Deactivations, Very strict monitoring, Monetary penalty.

P0 Seller (Post Undertaking)

Support: prepare responses for Type1,Type2 & Type3 since we are not entertaining any corrective actions from the supplier side post the undertaking.

Support: Communicating punishment timeline of unblock for Type1,Type2 sellers. Warning of severe monetary penalty and permanent deactivation.

Off Panel Comms: Formal warning of permanent deactivation and severe monetary.

Total Classification

P0 (Has not Submitted Undertaking Yet)

P0(Has submitted Undertaking)

P0 Type1

P0 Type2

P0 Type3

Graphical Timeline

⁠

https://docs.google.com/spreadsheets/d/13Dlc6gR4tpiP0wjMUWhbg1lrl4usMUy5MD4jm5mpncY/edit#gid=0⁠

⁠

Handling NI Seller

As part of this initiative we are not blocking corresponding NI account of P0 seller because of the following reasons

We have seen that there are various reason due to which seller uses multiple account

Separate accounts for separate categories.

Separate account for testing new products v/s old account for grossing products.

Managed by different sellers of the same family.

On sampling a few seller accounts we found that these NI accounts could be selling similar or extremely different kinds of products.

On this account we don't have enough confidence on blocking NI accounts of P0 sellers. Also it becomes complex to define an unblocking mechanism for NI accounts for P0 sellers since some of the NI accounts in the P0 seller group haven't shown any deactivation activity historically.

On risk aversion for cases where seller uses his NI account to start uploading brand fakes, if these NI account breaches 5% deactivation rate they will get classified as P1 and if these account behave similar to their corresponding P0 account they will get identified as P0 and will be blocked for catalog upload in 2 weeks.

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Pseudo Execution Code

Fetching Sellers

Fetch all suppliers from repeat offenders model table

Classifying Sellers

For all suppliers from (repeat offenders table) - Check if suppliers have entry in the Undertaking Table.

If entry is found in undertaking table

Create a repeat offender model step for P0 sellers who have submitted undertakings and calculate brand deactivations (Frequency, Deactivation_perc) happening for the products post their undertaking date.

Type 3 [frequency>4 or (current_date < Undertaking_Date + 7 day)]

Assign P0

Type 1 [(Date when Frequency became 3 < Undertaking_Date + interval ‘28’ day) ]

Assign status as P0 till current_date > (1st Date when when frequency became 3) + 60 days

Else Assign None

Type 2 [(Date when Frequency became 3 > Undertaking_Date + interval ‘28’ day) ]

Assign status as P0 till current_date < (1st instance when frequency=3) + 15 days

Else Assign None

Else assign ‘None’

Do the classification of remaining sellers (not part of the undertaking table) basis the existing logic of - P0 & P1. With modification such that any seller who graduates to P0 remains P0 till 30 days.

Introduce additional flag for P0

P0 (non undertaking)

P0 (With Undertaking)

Type1, date of reactivation (i.e. 1st Date when when frequency became 3) + 60 days )

Type2, date of reactivation (i.e. 1st Date when when frequency became 3) + 30 days )

Type3

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